55LV3730 (CHASSIS:LB12B) - LG TV Service Manual (repair manual). Page 9

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* Manual Download (Model Name and Serial Number)

If the TV set is downloaded by OTA or service man, sometimes
model name or serial number is initialized.(Not always)
It is impossible to download by bar code scan, so It need
Manual download.
a. Press the ‘Instart’ key of Adjustment remote control.
b. Go to the menu ‘6.Model Number D/L’ like below photo.
c. Input the Factory model name(ex 42LD450-TA) or Serial

number like photo.

d. Check the model name Instart menu. -> Factory name

displayed. (ex 42LE7500-TA)

e. Check the Diagnostics.(DTV country only) -> Buyer model

displayed. (ex 42LE7500-TA)

a. Using RS232

b. Check the menu on in-start

ADC adjustment is needed to find the optimum black level and
gain in Analog-to-Digital device and to compensate RGB
deviation.

(1) Adjustment Remote control
(2) 801GF(802B, 802F, 802R) or MSPG925FA Pattern Generator

- Resolution :

480i,720*480(MSPG-925FA -> Model: 209, Pattern: 65) -
480i
1080p, 1920*1080(MSPG-925FA -> Model: 225, Pattern:
65) - 1080p

- Pattern : Horizontal 100 % Color Bar Pattern
- Pattern level: 0.7 ± 0.1 Vp-p
- Image

(3) Must use standard cable.

(1) ADC 480i, 1080p Comp1

1) Check connected condition of Component 1 cable to the

equipment.

2) Give a 480i, 1080p Mode, Horizontal 100% Color Bar

Pattern to Component 1.

(MSPG-925FA -> Model: 209, Pattern: 65) - 480i
(MSPG-925FA -> Model: 225, Pattern: 65) - 1080p 

3) Change input mode as Component1 and picture mode

as “Standard”

4) Press the In-start Key on the ADJ remote control after at

least 1 min of signal reception. Then, select 7. External
ADC -> 1. COMP 1080p on the menu. Press enter key.
The adjustment will start automatically.

5) If ADC calibration is successful, “ADC RGB Success” is

displayed. If ADC calibration is failure, “ADC RGB Fail”
is displayed.

6) If ADC calibration is failure, after recheck ADC pattern or

condition retry calibration. Error message refer to 5).

(2) ADC 1920*1080 RGB

1) Check connected condition of Component & RGB cable

to the equipment

2) Give a 1920*1080 Mode, 100 % Horizontal Color Bar

Pattern to RGB port.

(MSPG-925 Series -> model: 225 , pattern: 65 ) 

3) Change input mode as RGB and picture mode as “Standard”.
4) Press the In-start key on the ADJ remote control after at

least 1 min of signal reception. Then, select 7. External
ADC -> 1. COMP 1080p on the menu. Press enter key.
The adjustment will start automatically.

5) If ADC calibration is successful, “ADC RGB Success” is

displayed. If ADC calibration is failure, “ADC RGB Fail”
is displayed.

6) If ADC calibration is failure, after recheck ADC pattern or

condition retry calibration. Error message refer to 5).

H-freq(kHz)

V-freq.(Hz)

Transmission

[A][I][][Set ID][][20][Cr]

[O][K][X] or [NG]